Electric lighting attachment for gas-stoves.



No. 747,446. PATBNTBD DEG.22,1903.

s. LBWELLEN.

ELECTRIG LIGHTING ATTACHMENT FOR GAS STOVE S.

APPLICATION FILED D20. 9, 1902.

K0 MODEL.

IllH I UNITED STATES Patented December 22, 1903.

PATENT OFFICE.

ELECTRIC LIGHTING ATTACHMENT FOR GAS-STOVES.

SPECIFICATION formingpart of Letters Patent No. 747,446, dated December22, 1903. Application filed December 9,1902. Serial No. 134,524. (Nomodel.)

the gas will be ignited as soon as the valve is open; and a furtherobject of my improvemeut is to so construct the attachment that upon thereturn movement or when the gas is turned ofl" a spark will not beformed.

With these ends in view this invention consists in the details ofconstruction and combination ofelements hereinafterset forth and thenspecifically designated by'theclaims.

In order that those skilled in the art to which this inventionappertains may understand how to make and use the same, the

construction and operation will now be described in detail, referring tothe accompanying drawings, forming a part of this specification, inwhich Figure l is a plan view of my attachment applied to a gas-stove,showing the valve in its closed position; Fig. 2, a similar view to-Fig. 1, showing the valve open and the electric attachment in theposition it would as.- sume after the spark has been made; Fig. 3, aside elevation of my device applied to a gasstove; Fig. 4, a verticalsection through the electric-lighting device.

A represents the burner of the gas-stove; B, the supply-pipe leadingthereto.

Gis the valve for controlling thegas-supply, and O is the valve-handle.

D is the electric lighting attachment,which may be secured in anysuitable manner to the gas-stove. In the drawings it is shown attachedby means of a clip E, secured around the supply-pipe B. Arising from theclip-E is a standard F, whichis journaled in the clip, so that thestandard can be turned to any position in a horizontal plane and set inposition by means of a set-screw F. Upon the upper end of the standardare pivoted two coiled at the point K, so as to form a flexible end uponthe contact-arm, which is usually used in all electric lightingattachments.

L is a stationary contact-point which is formed upon the outer end of anarm L, which is secured in the standard by passing through aninsulating-sleeve M, held in the standard, and this contact-arm isthreaded, so as to make the same adjustable,and is secured in place bynuts M, threaded upon the same and binding against each end of thesleeve M.- A not Mithreaded. upon the extreme outer end of the arm L,serves as a binding-post to contact one of the electric wires, the otherelectric wire being connected to some portion of the stove orattachment.

N is a rod pivoted to the plate H upon the opposite side of the pivotfrom the point where the contact-arm J is pivoted. Ihis rod N passesupward through a concentric slot .0, formed throughthe plate G, and thenthe rod N is bent at right angles and extends to the handle 0 of thevalve 0 and is connected to said handle in any suitable manner, so thatwhen said handle is moved so as to open or close the valve proper motionwill be communicated through the rod N to operate the electric lightingattachment.

The operation of the device is as follows: When the valve 0 is closed,the parts of the electric lighting attachment are in position, as shownin dotted lines in Fig. 1, and in opening the valve the first movement,as shown in Fig. 1, from the dotted position to the position shown infull lines will only move the under plate H, as the rod-N will travel inthe slot 0, and in moving this under plate the contact-arm J will beforced outward through the arm G, and as soon as the rod N reaches theend of the slot 0 further movement of the handle 0 toward the openposition will rotate both the plate G and H in unison, and this will somove the contactarm J as to cause the flexible end K to come in contactwith the stationary contact-point L and snap past the same, so as togenerate a spark in the well-known manner, and by the time the spark hasbeen formed the valve is open and the gas'flowing through the burnerwill thus be ignited. In turning oh. the gas it is obvious that no sparkwould be required, and it would only be a waste of electrical energy ifa spark was generated at this time. Therefore the first movement toclose the valve from the position shown in Fig. 2 from full lines todotted lines will only move the bottom plate H, the rod N traveling inthe slot 0, and this movement of the bottom plate H will draw thecontact -arm J backward through the arm G, so that when the rod Nreaches the end of the slot 0 and the plate G is rotated, so that thearm J is caused to travel toward its normal position, the flexible end Kwill then pass inside of the contact-point L without touching the same,and in this manner no spark is generated when the gas is turned oiT. I

Of course I do not wish to be limited to the exact construction hereshown,as slight modifications could be made without departing from thespirit of my invention.

Having thus fully described my invention, what I claim as new and usefulis 1. The combination of a gas-burner, supply pipe, gas controllingvalve and valvehandle,with electric lighting attachment consisting of astationary contact-point secured to but insulated from the gas stove,two plates pivoted between one pivot to the gasstove, a flexible endcontact-arm pivotally connected to the lower plate and adapted to slidethrough an opening formed through the end of an arm of the upper plate,a connection pivoted to the lower plate at one end and to the handle .ofthe gas-valve at the other end, the upper plate being provided with aslot through which said connection passes, as and for the purposespecified.

2. In combination with a gas-burner, supplypipe, gas controlling valveand valvehandle,with electric lighting attachmentconsisting of avertical standard secured to the gas-supply pipe, a stationarycontact-point arranged in juxtaposition to theburner and secured to butinsulated from the standard, two plates pivoted upon the same pivot, oneabove the other upon the upper side of the standard, a flexible endmovable contact-arm pivoted at its inner end to the lower plate, an armextending outward from the upper plate through which said movablecontactarm passes and is adapted to slide, a rod pivoted at one end tothe lower plate and extending upward through a slot provided in theupper plate, then passing to the handle and so secured to the handlethat proper movement will be communicated to the electric lightingattachment when the handle is moved so as to open or close the valve, asand for the purpose specified.

3. In an electric lighting attachment, a standard adjustable in ahorizontal plane, a set-screw for holding said standard stationary, saidstandard being in connection with one terminal of the source-ofelectricity, a stationary contact point formed upon the outer end of ascrew-threaded rod, a sleeve of insulation passing through the standard,a screw threaded rod passing through said sleeve and being secured inposition by a lock-nut upon either end, said screw-threaded rod being inconnection with the other terminal of the source of electricity, twoplates pivoted upon the same pivot, one above the other upon the upperend of the standard, a flexible end movable contact-arm pivoted upon itsinner end to the lower plate, an arm extending outward from the upperplate through which the movable contact arm passes and is adapted toslide, anactuated rod pivoted to the lower plate upon the opposite sideof the pivot from the point where the movable contact-arm is pivoted,said rod extending upward through a concentricallyformed slot providedin the upper plate, said rod then bent at right angles, as and for thepurpose specified.

In testimony whereof I have hereunto affixed my signature in thepresence of two subscribing witnesses.

SAMUEL LEYVELLEN.

Witnesses:

J. OSCAR GENTHER, J. C. GENTHER.

